GB1236501A - Improvements in or relating to radars - Google Patents

Improvements in or relating to radars

Info

Publication number
GB1236501A
GB1236501A GB3799369D GB3799369D GB1236501A GB 1236501 A GB1236501 A GB 1236501A GB 3799369 D GB3799369 D GB 3799369D GB 3799369 D GB3799369 D GB 3799369D GB 1236501 A GB1236501 A GB 1236501A
Authority
GB
United Kingdom
Prior art keywords
output
aerial
directional
integrator
directional aerial
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB3799369D
Inventor
William Houston
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
BAE Systems Electronics Ltd
Original Assignee
Marconi Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Marconi Co Ltd filed Critical Marconi Co Ltd
Publication of GB1236501A publication Critical patent/GB1236501A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
    • G01S7/02—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S13/00
    • G01S7/28—Details of pulse systems
    • G01S7/2813—Means providing a modification of the radiation pattern for cancelling noise, clutter or interfering signals, e.g. side lobe suppression, side lobe blanking, null-steering arrays

Landscapes

  • Engineering & Computer Science (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Radar Systems Or Details Thereof (AREA)

Abstract

1,236,501. Radio direction-finders. MARCONI CO. Ltd. 23 March, 1970 [29 July, 1969], No. 37993/69. Heading H4D. A radar comprises a directional spacescanning aerial D, a substantially non-directional aerial 0, receiving signal channels D1-D4 and 01-04 of substantially equal gain and noise factor and each including a logarithmic amplifier D4/04, a pair of integrators D6, 06, means 07 for adding to the output of integrator 06 a D.C. voltage such as to compensate for the difference in gain between the non-directional aerial and the " worst " (i.e. highest-level) sidelobe of the directional aerial, a subtractor S, and an amplitude discriminator AD producing an output when the output of integrator D6 exceeds that of adder 07. The invention affords a display of the direction of a jamming transmitter. In the embodiment gates D5, 05 are closed for the early part of each radar pulse repetition period to exclude clutter.
GB3799369D 1969-07-29 1969-07-29 Improvements in or relating to radars Expired GB1236501A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3799369 1969-07-29

Publications (1)

Publication Number Publication Date
GB1236501A true GB1236501A (en) 1971-06-23

Family

ID=10400463

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3799369D Expired GB1236501A (en) 1969-07-29 1969-07-29 Improvements in or relating to radars

Country Status (4)

Country Link
DE (1) DE2035468A1 (en)
FR (1) FR2060063B1 (en)
GB (1) GB1236501A (en)
NL (1) NL7010947A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0002076A1 (en) * 1977-11-14 1979-05-30 Hollandse Signaalapparaten B.V. Direction finding apparatus

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0002076A1 (en) * 1977-11-14 1979-05-30 Hollandse Signaalapparaten B.V. Direction finding apparatus

Also Published As

Publication number Publication date
FR2060063A1 (en) 1971-06-11
NL7010947A (en) 1971-02-02
DE2035468A1 (en) 1971-02-11
FR2060063B1 (en) 1974-05-03

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee